[PATCH RFC drm-next 0/1] Add support for drm_panic
Thomas Zimmermann
tzimmermann at suse.de
Wed Apr 2 09:45:21 UTC 2025
Hi
Am 02.04.25 um 10:43 schrieb Ryosuke Yasuoka:
> This patch adds drm_panic support for hyperv-drm driver. This function
> works but it's still needed to brush up. Let me hear your opinions.
>
> Once kernel panic occurs we expect to see a panic screen. However, to
> see the screen, I need to close/re-open the graphic console client
> window. As the panic screen shows correctly in the small preview
> window in Hyper-V manager and debugfs API for drm_panic works correctly,
> I think kernel needs to send signal to Hyper-V host that the console
> client refreshes, but I have no idea what kind of signal is needed.
>
> This patch is tested on Hyper-V 2022.
>
> Ryosuke Yasuoka (1):
> drm/hyperv: Add support for drm_panic
>
> drivers/gpu/drm/drm_simple_kms_helper.c | 26 +++++++++++++
> drivers/gpu/drm/hyperv/hyperv_drm_modeset.c | 42 +++++++++++++++++++++
> include/drm/drm_simple_kms_helper.h | 22 +++++++++++
No changes to simple_kms_helper please. This is obsolete and should go
away. Just put everything into hyperv_drm.
Best regards
Thomas
> 3 files changed, 90 insertions(+)
>
>
> base-commit: cf05922d63e2ae6a9b1b52ff5236a44c3b29f78c
--
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)
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